'84 3.2 Bucking & Backfiring under acceleration

[petercory]

First time out after winter storage, car was bucking, backfiring and stalled under acceleration 3 or 4 times within a 10 minute time period. Car would not immediately restart but did after siting for a few minutes. Condition cleared up after about 1/2 half hour and car ran fine. I thought that I might have had some water in the fuel and added about 5 gals. of fresh fuel before putting it away; second outing 3 weeks later, the car ran fine. Today was a repeat of the 1st outing. I haven't changed the filter in about 3 years (less than 1,500 miles) and will change it this week. Any diagnostic/curative suggestions would be appreciated.

[Jdub]

The filter is a good start - I typically replace mine annually. Maybe a bad tank of gas, but this does underline how our cars dislike sitting. Best bet is to be sure you put a gas preserver into your near-empty tank after a good run and fill up. Sorry not to be of more help I am a CIS guy! Good luck.

[FA-18C]

Worth checking plug wires, connections as well. Also check your fuel tank strainer.

[X JBM X]

Mine did something similar and I thought it was the DME. Turned out replacing the CPS sensor and RPM sensor got things cleared up.

[petercory]

Also thought about the Crank Position Sensor, will also check the plug wires although they only have about 2,500 mi. on them.